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lawyer [7]
3 years ago
9

I NEED ALOT OF HELP SOMEONE!

Mathematics
1 answer:
DedPeter [7]3 years ago
4 0
V = 1/3 * 3.14 * 11 * 6^2 = 414.48 m^3

cost = V * 20 = 414.48 * 20 = 8289.60
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Sami cuts out a rectangle that has a perimeter of 48 inches and a length of 13 inches.
ddd [48]

Answer:

Width is 11 inches

Step-by-step explanation:

I am not sure what the question is.  I think you might be looking for the width length.  The perimeter is the distance around a rectangle.  If the whole distance around is 48.  We have 2 lengths and 2 widths.  They tell us that the length is 13.  We have two lengths so the lengths add up to 26.  We can subtract that from 48 and that leaves us with 22 (48-26)  This is the total for the 2 widths.  Since the 2 widths are the same length we divide that number by 2 to get 11.

11 + 11+ 13 + 13 = 48

4 0
2 years ago
The terminal velocity of a person falling through air is about 100Km/hr. The acceleration due to gravity is 10ms−2. Use this inf
Aleonysh [2.5K]

The question here is how long does it take for a falling person to reach the 90% of this terminal velocity. The computation is:

The terminal velocity vt fulfills v'=0. Therefore vt=g/c, and so c=g/vt = 10/(100*1000/3600) = 36,000/100,000... /s. Incorporating the differential equation shows that the time needed to reach velocity v is 

t= ln [g / (g-c*v)] / c. 

With v=.9 vt =.9 g/c,

t = ln [10] /c = 6.4 sec.

8 0
3 years ago
Question 7 50 points
meriva

Answer:

1f 2×4 -3׳ 12k is divided by × - 3 the remainder is 21 find the value of k

8 0
3 years ago
Read 2 more answers
**22 POINTS** Please solve this fraction as a difference
Ghella [55]

Answer:

\dfrac{x}{4}-\dfrac{7}{12}

Step-by-step explanation:

The fraction is the equivalent of ...

\dfrac{1}{12}{(3x-7)

and the distributive property applies.

=\dfrac{1}{12}(3x)-\dfrac{1}{12}(7)\\\\=\dfrac{3\cdot x}{3\cdot 4}-\dfrac{7}{12}\\\\=\dfrac{x}{4}-\dfrac{7}{12}

3 0
3 years ago
6<br> 4<br> 2<br> Divide (16x - 12x + 4x) by 4x
cricket20 [7]

Answer:2

Step-by-step explanation:

Combine like terms and divide

8x/4x

2

5 0
1 year ago
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